Combination tie and gage member for reinforced-concrete floor construction.



W. B. HOUGH.

COMBINATION TIE AND CAGE MEMBER FOR REINFORCED CONCRETE FLOOR CONSTRUCTION.

' APPLICATION FILED NOV-'4. 19H- LQMEQQI. Patented Feb. 6,1911

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WILLIAM B. HOUGH, OF CHICAGO, ILLINOIS, A SSIGNOR, BY MESNE ASSIGNMENTS, T0 PATENTED DEVICES COMPANY, OF PORTLAND, MAINE, A CORPORATION OF MAINE.

connma'rron 'rxn AND GAGE MEMBER non nnmrononn-concnnrn FLOOR cons'rnncrron.

fipeeifleation of Letters Patent.

Patented Feb. 6, 121?.

Application filed November t, 1911. Serial K412658379.

ful Improvements in Combination Tie and Gage Members for Reinforced-Concrete Floor Construction, of which the following is a specification.

This invention relates to devices 'for spacing and'securing the metal bars employed in the construction of reinforced-concrete It; is the purpose of this invention to provide improved means for securing such bars at the desired distances apart and for spacing the bars at the proper depth within the floor.

In the accompanying drawings, Figure 1 is a fragmental top plan view showing reinforcingmembers spaced apart andsecured together by means embodying the features of my invention. Fig. 2 is a fragmental view, illustrating the combination tie and gage member in side elevation. Fig, 3 is a fragmental top plan view of said member. Figs. 4 and 5 are, respectively, fragmental side and plan views of an alternative form of tying means. Figs, 6 and 7, 8 and 9, l0 and 11, and 12 and 13, are similar views representing further alternative tying means.

The decking or form-work upon which the concrete is to be poured is indicated at A in the drawings, and the reinforcing members at B. To support these bars at the required distance from the lower face of the floor slab, and at the proper distance apart, I provide a plurality of longitudinal members 1, each consisting of a metal strip, such as a strip of hoop-iron; said strip being bent at intervals to form chairs 2 for the support of the bars B. The chairs 2 extend upwardly above the plane of the body of the strip 1. Preferably, although not necessarily, the strips 1 may be bent as at 3 so as to elevate the strips between the chairs 2 slightly above the surface of the decking, in order that the fluid portion of the concrete may flow beneath the strips, whereby the latter become embedded and inclosed in the slab. Preferably, however, the bends 3 are so slight that the portions of the strip between the chairs are substantially fiatfso that accidental flattening of the strip into contact with the form-work does not afiect the usefulness of the device.

to form a seatfor the bar, as indicated in Fig. 2. The strip 1 with the chairs 2 conmay be easily handled in manufacture and transportation and when placing the devices on the form-work. Said device is very simple and inexpensive. 2

Suitable means may be provided for securing the bars B onto the chairs 2. Figs. 1, 2'and 3 represent a strip 4 welded or otherwise attached at its middle to the chair 2, the ends of the strip 4 constituting arms which may be bent to embrace a bar B placed between them.

Figs. 4: and 5 illustrate an alternative form of bar-engaging means consisting of a wire 5 passed through openings in the side portions of the chair, the ends of the wire being bent to engage the bar. If desired, the wire 5 may be passed through a loop 6 on the top of the chair, said loop being formed by cutting two parallel slits in the chair. and pressing up the metal between the slits.

. Figs. 8 and 9 represent the wire 5 as extending through diagonally opposite openings 7 in the top of the chair.

Figs. 10 and 11 show bar-engaging arms 8, each cut from the strip 1 and chair 2 at one side of the chair, one end of the arm being integrally connected to the chair and the other end being free. If desired, the bar-engaging means may consist of a wire 9 passed through the chair between the side portions thereof and encircling the bar, the ends of the wire being twisted together or otherwise suitably united.

I claim as my invention:

1. A combined tie and gage member for reinforced concrete construction comprising a relatively narrow flat strip of metal provided with spaced apart substantially rectangular chairs, each consisting of spaced apart upwardly bent portions of said strip united by a seat fora reinforcing bar, 'extending substantially parallel with the main If desired, the top of the chair may be dished or recessed stitutes -a connected series of chairs which portion of the strip, and tie strips attached to the chairs and having free ends capable.

a relatively narrow flat strip of metal pro vided with spaced apart substantially rectangular chairs, each consisting of spaced apart upwardly bent portions of said strip united by a seat for a reinforcing bar, extending substantially parallel with the main portion of the 'strip, the bends connecting the chairs with the strip being shaped to space the body of the strip from its supporting surface.

In testimony whereof I afiix my signature in presence of two Witnesses.

WILLIAM B. Hoosi r.

Witnesses:

C. PAUL PARKER, GEORGE CHINDAHL. 

